Prime Keys are:
T_REC is slotted 'ts_eq' using T_REC_index
DB Index Keys are:
T_REC_index
All Keywords for series hmi.B_720s:
T_OBS (time) Nominal time
T_REC (time) Slot time
T_REC_epoch (time) Time of origin
T_REC_step (float) ts_eq step
T_REC_unit (string) ts_eq unit
DATE (time) Date_time of processing to disambiguate of ME VFISV magnetic field azimuth
DATE_S (time) Date_time of generating Stokes data
DATE_ME (time) Date_time of generating ME inversion data
DATE__OBS (time) [DATE-OBS] DATE_OBS = T_OBS - EXPTIME/2.0
CADENCE (float) Repetition interval
TELESCOP (string) For HMI: SDO/HMI
INSTRUME (string) For HMI: HMI_SIDE1, HMI_FRONT2, or HMI_COMBINED
WAVELNTH (float) For HMI: 6173.3 Angstroms
CAMERA (int) For HMI: 1 (side camera), 2 (front camera), or 3 (both cameras)
QUALITY (int) Quality index of data used to generate fd.B_720s (0x00000000) is good quality, (any nonzero value) should be investigated in data documentation
QUAL_ME (int) ME Quality word
QUAL_S (int) Level 1p Quality word
QUALLEV1 (int) Logical OR on the bits of the level 1 Quality word
BUNIT (string), per-segment BUNIT: physical units of each data segment
ORIGIN (string) ORIGIN: location where file made
CONTENT (string) CONTENT
HISTORY (string) History of data
COMMENT (string) Commentary on the data
BLD_VERS (string) JSOC-build version number
CALVER64 (longlong) Calibration Version
HFLID (int) HMI_SEQ_ID_FRAMELIST
HCFTID (int) HMI_SEQ_ID_FOCUS
QLOOK (int) QLOOK: 0=definitive data, 1=quick-look data
CTYPE1 (string) CTYPE1: HPLN-TAN (SOLARX)
CTYPE2 (string) CTYPE2: HPLT-TAN (SOLARY)
CRPIX1 (float) CRPIX1: location of the Sun center in CCD x direction
CRPIX2 (float) CRPIX2: location of the Sun center in CCD y direction
CRVAL1 (float) CRVAL1: x origin - center of the solar disk
CRVAL2 (float) CRVAL2: y origin - center of the solar disk
CDELT1 (float) Image scale in the x direction
CDELT2 (float) Image scale in the y direction
CUNIT1 (string) CUNIT1: arcsec
CUNIT2 (string) CUNIT2: arcsec
CROTA2 (float) CROTA2: INST_ROT + SAT_ROT
CRDER1 (float) CRDER1: estimate of random error in coordinate x
CRDER2 (float) CRDER2: estimate of random error in coordinate y
CSYSER1 (float) CSYSER1: estimate of systematic error in coordinate x
CSYSER2 (float) CSYSER2: estimate of systematic error in coordinate y
WCSNAME (string) WCS system name
DSUN_OBS (double) Distance from SDO to Sun center.
DSUN_REF (double) Astronomical Unit
RSUN_REF (double) Reference radius of the Sun: 696,000,000.0 m
CRLN_OBS (float) Carrington longitude of HMI
CRLT_OBS (float) Carrington latitude of HMI
CAR_ROT (int) Carrington rotation number of CRLN_OBS
OBS_VR (double) Velocity of the observer in radial direction. + is away from Sun
OBS_VW (double) Velocity of the observer solar-westward. + in rough direction of Earth orbit
OBS_VN (double) Velocity of the observer solar-northward (heliographic). + to north
RSUN_OBS (double) Angular radius of Sun. Corresponds to arcsin(RSUN_REF/DSUN_OBS)
AMBCODEV (string) Version of Disambig code
AMBDOCU (string) Document for Disambig code
AMBGMTRY (int) Flag determining whether to use planar or spherical geometry; 0 for automatic selection; 1 for planar; 2 for spherical.
AMBNEROD (int) Number of pixels by which to erode map of above threshold pixels
AMBNGROW (int) Number of pixels by which to grow eroded map
AMBNPAD (int) Padding to use in potential field calculation
AMBNAP (int) Width of apodizing window in potential field calculation
AMBNTX (int) Number of tiles to use in x-direction for potential field calculation
AMBNTY (int) Number of tiles to use in y-direction for potential field calculation
AMBBTHR0 (double) Transverse field strength threshold at disk center for using simulated annealing
AMBBTHR1 (double) Transverse field strength threshold at limb for using simulated annealing
AMBSEED (int) Input random number seed
AMBNEQ (int) Number of reconfigurations attempted at each temperature setting
AMBLMBDA (double) Weighting factor between divergence and vertical current density
AMBTFCT0 (double) Input factor to scale initial temperature
AMBTFCTR (double) Input factor to reduce temperature
DOFFSET (int) Field strength offset, a value added to the base threshold value of the magnetic noise mask that determines how the pixel is handled in disambiguation
NOISEMASK (int) The magnetic field noise mask used as a base threshold value (1) indicates the use of a mask dependent upon spacecraft radial velocity (0) is a linear noise mask as a function of center to limb angle
MASKINFO (string) Information of magnetic field noise mask shown; provides name and number of data series used for coefficient lookup table, i.e., hmi.lookup_ChebyCoef_BNoise[2833-2933]
TINTNUM (int) Stokes : number of points used for the temporal interpolation
SINTNUM (int) Stokes : number of points used for the spatial interpolation
DISTCOEF (string) Stokes : path to the distortion coefficient table used to produce the data
ROTCOEF (string) Stokes : path to the differential-rotation coefficient table used to produce the data
POLCALM (int) Method used by the polarization calibration subroutine
SOURCE (string) Input Stokes data series
CODEVER0 (string) Version of the time-averaged IQUV code used to produce the data
CODEVER1 (string) Version of the gapfilling subroutine used to produce the data
CODEVER2 (string) Version of the temporal interpolation subroutine used to produce the data
CODEVER3 (string) Version of the polarization calibration subroutine used to produce the data
CODEVER4 (string) Version of VFISV code in the CVS context
CODEVER5 (string) Version of Disambiguation code in the CVS context
CODEVER6 (string) Version of HARP code in the CVS context
INVCODEV (string) Version of VFISV code
INVDOCU (string) Document for VFISV code
INVITERA (int) Number of iterations of VFISV
INVLMBDA (int) Number of wavelength points to compute synthetic line in VFISV
INVLMBDF (int) Number of HMI filters
INVTUNEN (int) Number of tuning positions of HMI filters
INVSVDTL (double) SVD tolerance in VFISV
INVCHIST (double) Chi-sqr stopping criteria in VFISV
INVPOLTH (double) Polarization threshold in VFISV
INVPJUMP (double) Percentage jump in VFISV
INVLMBDM (double) First wavelength position in synthetic profiles, measured with respect to line center (in mA)
INVLMBD0 (double) Central wavelength of HMI spectral line
INVLMBDB (double) Wavelength shift - parameter proportional to Lande factor of spectral line (4.67*1D-13*lambda0^2*geff*1D3)
INVDLTLA (double) Spectral sampling of synthetic spectral line in VFISV
INVLMBDS (int) Number of wavelength points in subregion where synthetic line is calculated
INVLMBMS (double) First wavelength position of sub-region where synthetic profiles are calculated, measured with respect to line center (in mA)
INVLYOTW (double) Lyot filter FWHM in VFISV
INVWNARW (double) FSR (full spectral range) of the Narrow-Band Michelson
INVWSPAC (double) Wavelength spacing between the HMI filters
INVINTTH (double) Intensity threshold in VFISV
INVNFCTI (double) Noise Sigma factor for I
INVNFCTQ (double) Noise Sigma factor for Q
INVNFCTU (double) Noise Sigma factor for U
INVNFCTV (double) Noise Sigma factor for V
INVCONTI (int) Flag for continuum measurement
INVWGHTI (double) Stokes I weight in the inversion
INVWGHTQ (double) Stokes Q weight in the inversion
INVWGHTU (double) Stokes U weight in the inversion
INVWGHTV (double) Stokes V weight in the inversion
INVSTLGT (string) Flag for stray light. No means that the stray light is not accounted for.
INVFREEP (int) Flags for 10 free parameters : the order of variables must be found at COMMENT keyword
INVFLPRF (string) Flag/Comment on filter-profile
INVPHMAP (string) Flag/Comment on phase map
INVVLAVE (double) Average of inverted V_los over processed pixels
INVBLAVE (double) Average of inverted B_los over processed pixels
INVBBAVE (double) Average of inverted field strength over processed pixels
INVNPRCS (int) Numer of pixels processed
INVNCNVG (int) Numer of pixels at which ME VFISV converged
DATAVALS (int), per-segment Actual number of data values in images (pixels)
MISSVALS (int), per-segment Missing values: TOTVALS - DATAVALS
DATAMIN (float), per-segment Minimum value from pixels within 99% of solar radius
DATAMAX (float), per-segment Maximum value from pixels within 99% of solar radius
DATAMEDN (float), per-segment Median value from pixels within 99% of solar radius
DATAMEAN (float), per-segment Mean value from pixels within 99% of solar radius
DATARMS (float), per-segment Rms deviation from the mean value of pixels within 99% of solar radius
DATASKEW (float), per-segment Skewness from the mean value of pixels within 99% of solar radius
DATAKURT (float), per-segment Kurtosis of pixels within 99% of solar radius
BKEYS1 (string) For future use
BKEYS2 (string) For future use
BKEYS3 (string) For future use
BKEYI1 (int) For future use
BKEYI2 (int) For future use
BKEYI3 (int) For future use
BKEYD1 (double) For future use
BKEYD2 (double) For future use
BKEYD3 (double) For future use
Segments for series hmi.B_720s:
link through MDATA Inclination
link through MDATA Azimuth before disambiguation
disambig fits 4096x4096 Flag for 180 degree change in azimuth (3 options)
link through MDATA Field Strength
link through MDATA LOS Velocity with Field
link through MDATA Doppler Width
link through MDATA Eta_0
link through MDATA Damping
link through MDATA Continuum
link through MDATA Gradient
link through MDATA Filling Factor with Field
link through MDATA Chi square
link through MDATA Convergence flag and index
link through MDATA Inclination_Err
link through MDATA Azimuth_Err
link through MDATA Field_Err
link through MDATA VLos_Err
link through MDATA Alpha_Err
link through MDATA Field_Inclination_Err
link through MDATA Field_azimuth_Err
link through MDATA Inclination_Azimuth_Err
link through MDATA Field_Alpha_Err
link through MDATA Inclination_Alpha_Err
link through MDATA Azimuth_Alpha_Err
conf_disambig fits 4096x4096 Confidence index for disambiguation result
info_map fits 4096x4096 Updated quality map
confid_map fits 4096x4096 Updated confidence index
Links for series hmi.B_720s:
MDATA DYNAMIC hmi.ME_720s_fd10 ME